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Finding the Fourth Proportional to 1,599, 2,398.11 and 559.05

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Solution

The fourth proportional to 1,599, 2,398.11 and 559.05 is: 838.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599 : 2,398.11 = 559.05 : x
  2. Step 2: Convert to fraction form
    1,599/2,398.11 = 559.05/x
  3. Step 3: Cross multiply
    1,599x = 2,398.11 × 559.05
  4. Step 4: Simplify right side
    1,599x = 1,340,663.40
  5. Step 5: Solve for x
    x = 1,340,663.40/1,599
  6. Step 6: Final answer
    x = 838.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.